Comments: The toe box looks and feels a bit narrow for me but that could be in part due to feet swelling in hot weather running. I am very disappointed with the change in the sole from the old A5 model. This sole has a different feel, clunkier and not as grippy. Fortunately, I have stocked up on the old A5s. Like many runners, I hate it when company's start tinkering with an already great product.From: Christine, Tualatin, OR, USA. May 7th 2014